208779760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:239

約数の個数: 160

約数和(自身を含む): 578534400

約数和(自身を除く): 369754640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 59, 70, 71, 80, 89, 112, 118, 140, 142, 178, 236, 280, 284, 295, 355, 356, 413, 445, 472, 497, 560, 568, 590, 623, 710, 712, 826, 890, 944, 994, 1136, 1180, 1246, 1420, 1424, 1652, 1780, 1988, 2065, 2360, 2485, 2492, 2840, 3115, 3304, 3560, 3976, 4130, 4189, 4720, 4970, 4984, 5251, 5680, 6230, 6319, 6608, 7120, 7952, 8260, 8378, 9940, 9968, 10502, 12460, 12638, 16520, 16756, 19880, 20945, 21004, 24920, 25276, 26255, 29323, 31595, 33040, 33512, 36757, 39760, 41890, 42008, 44233, 49840, 50552, 52510, 58646, 63190, 67024, 73514, 83780, 84016, 88466, 101104, 105020, 117292, 126380, 146615, 147028, 167560, 176932, 183785, 210040, 221165, 234584, 252760, 293230, 294056, 335120, 353864, 367570, 372821, 420080, 442330, 469168, 505520, 586460, 588112, 707728, 735140, 745642, 884660, 1172920, 1470280, 1491284, 1769320, 1864105, 2345840, 2609747, 2940560, 2982568, 3538640, 3728210, 5219494, 5965136, 7456420, 10438988, 13048735, 14912840, 20877976, 26097470, 29825680, 41755952, 52194940, 104389880, 208779760]

約数ペア:

[(1, 208779760), (2, 104389880), (4, 52194940), (5, 41755952), (7, 29825680), (8, 26097470), (10, 20877976), (14, 14912840), (16, 13048735), (20, 10438988), (28, 7456420), (35, 5965136), (40, 5219494), (56, 3728210), (59, 3538640), (70, 2982568), (71, 2940560), (80, 2609747), (89, 2345840), (112, 1864105), (118, 1769320), (140, 1491284), (142, 1470280), (178, 1172920), (236, 884660), (280, 745642), (284, 735140), (295, 707728), (355, 588112), (356, 586460), (413, 505520), (445, 469168), (472, 442330), (497, 420080), (560, 372821), (568, 367570), (590, 353864), (623, 335120), (710, 294056), (712, 293230), (826, 252760), (890, 234584), (944, 221165), (994, 210040), (1136, 183785), (1180, 176932), (1246, 167560), (1420, 147028), (1424, 146615), (1652, 126380), (1780, 117292), (1988, 105020), (2065, 101104), (2360, 88466), (2485, 84016), (2492, 83780), (2840, 73514), (3115, 67024), (3304, 63190), (3560, 58646), (3976, 52510), (4130, 50552), (4189, 49840), (4720, 44233), (4970, 42008), (4984, 41890), (5251, 39760), (5680, 36757), (6230, 33512), (6319, 33040), (6608, 31595), (7120, 29323), (7952, 26255), (8260, 25276), (8378, 24920), (9940, 21004), (9968, 20945), (10502, 19880), (12460, 16756), (12638, 16520)]